it would be the second one because it is exactly the same the first one is a little bit shorter so there not exactly the same
X - male lions
y - female lions
The ratio of the number of male lions to female lions is 21:20.
![\frac{x}{y}=\frac{21}{20} \\ x=\frac{21}{20}y](https://tex.z-dn.net/?f=%5Cfrac%7Bx%7D%7By%7D%3D%5Cfrac%7B21%7D%7B20%7D%20%5C%5C%20x%3D%5Cfrac%7B21%7D%7B20%7Dy)
There are 123 lions.
![x+y=123 \\ x=123-y](https://tex.z-dn.net/?f=x%2By%3D123%20%5C%5C%0Ax%3D123-y)
Set both equations equal to each other:
![x=x \\ \frac{21}{20}y=123-y \ \ \ |+y \\ \frac{21}{20}y+y=123 \ \ \ |\times 20 \\ 21y+20y=2460 \\ 41y=2460 \ \ \ |\div 41 \\ y=60](https://tex.z-dn.net/?f=x%3Dx%20%5C%5C%0A%5Cfrac%7B21%7D%7B20%7Dy%3D123-y%20%5C%20%5C%20%5C%20%7C%2By%20%5C%5C%0A%5Cfrac%7B21%7D%7B20%7Dy%2By%3D123%20%5C%20%5C%20%5C%20%7C%5Ctimes%2020%20%5C%5C%0A21y%2B20y%3D2460%20%5C%5C%0A41y%3D2460%20%5C%20%5C%20%5C%20%7C%5Cdiv%2041%20%5C%5C%0Ay%3D60)
There are
60 female lions.
Answer: D
Step-by-step explanation:
Answer:
y = 0.0807x - 3.4286
Step-by-step explanation:
Given the data above :
X :
1400
1700
1500
Y:
108
133
120
Using a linear regression calculator, the regression equation obtained is :
y = 0.0807x - 3.4286
Slope = 0.0807
Intercept = - 3.4286
x = predictor variable
y = predicted variable
All you would have to do is take the difference between 1.7 and 1.5, by subtracting 1.5 from 1.7, which is 0.2 m.
0.2 m = 0.2 • 100 = 20 cm.
The difference in heights expressed in Cm would be 20 cm.